SN74LVC821DW

Flip Flops Overview

The SN74LVC821DW is a 10-bit bus interface flip-flop from the Texas Instruments LVC logic series. It features D-type positive-edge triggered operation with non-inverting, three-state outputs in a 24-pin SOIC package. The device operates within a supply voltage range of 1.65 V to 3.6 V and supports CMOS and TTL input types. Key electrical parameters include a maximum propagation delay of 8.5 ns at 2.7 V with a 50 pF load, and output drive currents of ±24 mA. It functions reliably across an operating temperature range of -40 °C to +85 °C.

Flip Flops Feature Summary

• Provides 10-bit data storage via D-type positive-edge triggered flip-flops for synchronous bus interfacing.
• Features three-state outputs that allow direct connection to system buses without additional drivers.
• Supports low-voltage operation down to 1.65 V while maintaining compatibility with standard 5 V tolerant inputs.

Flip Flops Applications

• Synchronous data buffering in high-density digital systems
• Bus interface circuits requiring 10-bit word width
• Memory address latching applications

Flip Flops Procurement Notes

Verify component authenticity through authorized channels as this specific part number may be discontinued or subject to lifecycle changes. Confirm package integrity and pin alignment upon receipt. Ensure static-safe handling procedures are followed during installation. Cross-reference datasheet revisions to confirm parameter consistency before final design integration.

Flip Flops Selection Notes

Select this component when a 10-bit wide register with tri-state capability is required in low-power designs. The LVC series offers superior speed-to-power efficiency compared to older logic families. Ensure the system clock frequency remains below the maximum specified limit to maintain signal integrity. Verify that the load capacitance does not exceed the testing conditions defined in the official specifications.

Flip Flops Part Context

This device belongs to the SN74LVC821A family of bus interface flip-flops. It shares functional similarities with other 10-bit registers but distinguishes itself through its specific low-voltage CMOS technology. The DW suffix indicates a plastic small-outline package suitable for surface-mount assembly. It serves as a bridge between microprocessors and peripheral devices in complex digital architectures.

Flip Flops Replacement Considerations

SN74LVC821ADW is a verified equivalent variant within the same manufacturer lineup. SN74LVC821APW offers identical functionality in a TSSOP package. SN74ABT821ADWR provides similar bus interface capabilities but operates at higher voltages and currents. Verify pinout compatibility before substituting any alternative part numbers.